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MIPS: Fix map_physmem for cached mappings

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map_physmem should return a pointer that can be used by the CPU to
access the given memory - on MIPS simply returning the physical address
as it does prior to this patch doesn't achieve that. Instead return a
pointer to the memory within (c)kseg0, which matches up consistently
with the (c)kseg1 pointer that uncached mappings return via ioremap.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
This commit is contained in:
Paul Burton 2016-09-26 19:28:57 +01:00 • committed by Daniel Schwierzeck
parent 7a3e0f74a7
commit 6fd596a1aa
1 changed files with 1 additions and 1 deletions
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2
arch/mips/include/asm/io.h
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@ -501,7 +501,7 @@ map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags)
if (flags == MAP_NOCACHE)
return ioremap(paddr, len);
return (void *)paddr;
return (void *)CKSEG0ADDR(paddr);
}
/*